Why was the obtuse angle hot?
It was more than 90 degrees.
Listen, you absolute buffoon, you probably don't even know what an angle is. This is a pun, get it? An obtuse angle is any angle greater than 90 degrees, and "hot" is used here as a pun.
SERIUSLY WORST JOKE IN THE WHOLE WORLD
XTECXRNOX
SERIUSLY WORST JOKE IN THE WHOLE WORLD